While I have many songs that I associate with Lois, this one is without a doubt "Keeps Getting Better" by Christina Aguilera. I can't listen to that song and not think of Lois. Everything about the lyrics fit her, especially the parts about being a super bitch and then being a heroine some days. Also the whole "I know what I am and I don't give a damn" is totally her too. Lois has many layers and the song totally nails it.

Day 1 – Your favorite song that’s ever been on SmallvilleDay 2 – The song that you think best describes Clark Kent on SmallvilleDay 3 – The song that you always wanted to be on SmallvilleDay 4 – A song you think describes Chloe Sullivan on SmallvilleDay 5 – Your favorite music moment on SmallvilleDay 6 – A song that you think describes Lois Lane on SmallvilleDay 7 – A song you think describes Lana Lang on SmallvilleDay 8 – A song you think best describes Oliver Queen on SmallvilleDay 9 – A song from Lois Lane’s favorite band WhitesnakeDay 10 – A song that describes Smallville’s Lex LuthorDay 11 – A song you’d put in place of another in a certain sceneDay 12 – The song that reminds you of one of the Smallville “ships”Day 13 – A song from a Smallville season finaleDay 14 – Favorite song that you heard on Smallville firstDay 15 – A song that reminds you of Smallville’s first four seasons (the high school years)Day 16 – A song that reminds you of Smallville’s “Metropolis Years”Day 17 – A song you think best defines Smallville’s version of Superman!Day 18 – A song you think best defines a villain on Smallville (Lex, Zod, Braniac, Lionel, Doomsday, etc)Day 19 – A song that means a lot to you that was played on SmallvilleDay 20 – Favorite song by Mark Snow or Louis Febre that has been used on SmallvilleDay 21 – A song you think best describes Smallville